:root {
  --surreal-ink: #172033;
  --surreal-blue: #2d5b9f;
  --surreal-gold: #b7791f;
  --surreal-paper: #f7f8fb;
}
body {
  color: var(--surreal-ink);
}

main {
  max-width: 78rem;
}

h1, h2, h3 {
  color: var(--surreal-blue);
}

div.definition_thmcontent,
div.theorem_thmcontent,
div.proposition_thmcontent,
div.lemma_thmcontent,
div.corollary_thmcontent {
  border-left: .22rem solid var(--surreal-blue);
  background: var(--surreal-paper);
  padding: .8rem 1rem;
  margin: 1rem 0;
}

div.proof_content {
  border-left: .14rem solid var(--surreal-gold);
  padding-left: 1rem;
}

code, .texttt {
  overflow-wrap: anywhere;
}